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CFD , SST
Posted 04.09.2017, 06:25 GMT-4 Computational Fluid Dynamics (CFD) Version 5.3 0 Replies
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I am using the SST turbulence model to simulate a thin film flow between to rotating cylinders. I am able to get a converged solution up to a certain mesh size, but as soon as I add another element in the thickness direction of the film I can no longer get convergence.
Could this be because Comsol abandons the wall functions at this stage because the mesh is considered fine enough and then the mesh is all of a sudden too coarse to integrate the flow all the way to the wall?
Also, in the manual where the SST model is described there is a parameter called lplus_cc but all I can find in Comsol is lplus_w, are they in fact the same variables?
Best regards Philip
Hello Philip Croné
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